That is a very clever mod btbw!, and welcome to BLF. Since I do not know electronics very well I can not judge what you did to the driver, but it works so you did the right thing , am I correct that the voltage on the 7135 chips is outside the specs? (but who cares if it works?).
Yes thatās correct. He could minimize the risk by adding a 1000ohm/900ohm voltage divider in the input pin to drop VIN to 4v (well within spec). Theyād still be regulating out of spec but the input signal would be below their max. Should prolong their life a bit.
This old EA41 has hosted my pukelight a while now but itās not actually very useful as a flashlight. Not wanting to take it apart and bulld the host into a more serviceable flashlight I just let it sit on the shelf for the last 4 years. Sentimental reasons I guess, itās the first one I built and I went through all the heatsink I had machined so I couldnāt ever make anotherā¦
Well I scribbled out a circuit drawing last night that I thought might work and sure enough it did! I now have 2 triple channel drivers and their very different from each other UIās working together! I got it to work by using the PL drivers 6x7135 channel for white as the Nx7135 channel on the TA driver, diodes keep the output signals from each MCU from reaching the other MCU pin and from conflicting should they accidentally get switched on at the same time. Conveniently PL can be controlled from a single button (it was originally 2 button since the EA41 has 2 buttons) so switch could be available for each driver and the anduril driver got control of the switch LED.
Even though it was a working light with a working driver I still built a fresh one because reasons.
Darn I forgot to take pictures of the cross-talk prevention diode placement, talk about surgery!
āPukelightā was a multi colored strobe / flashlight I built and marketed to LEO & security companies (they sold pretty well) back when I was doing flashlights professionally.
The concept is legit, randomized color and flash patterns of light help disorient. The military uses it, its so effective travel companies sometimes even use them for customers to find out if they get seasick before booking a cruise. Itās not actually designed to make you vomit or anything like that, just disorient.
As a handheld unit itās pretty much outdated tech now cause pocket size flashlights with 3000+ lumens exist and with that much shear power white light is just as effective at disorientingā¦
I think running on AAās was itās best selling point, I would include a couple sets of L91ās and I know a lot of guys were already running NiMH too so they didnāt have to deal with Li cells.
Note it is now my second NiMH powered anduril light!
We have a friend over there in Moffat that hasnāt been to visit in a while, maybe I could convince her to come and she could bring it with her. She might even be persuaded to bring some of that fantastic candy from the Moffat Toffee Shoppe.
My Mom and Lettie have been friends since 1943, Lettie worked at the toffee shop many many years. Lettie was originally from London, married a man from Moffat and they lived there all their married lives. Jim passed some years backā¦ My Mom and Dad have been there visiting and loved the country, Iāve always wanted to go but have never managed itā¦
Well, if you ever do visit, go between June - August, the only time thereās a chance of warm/ good weather but still likely to experience all the seasons in a single day